client/pkg/serving/service.go

52 lines
1.8 KiB
Go

// Copyright © 2019 The Knative Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package serving
import (
"errors"
servingv1alpha1 "github.com/knative/serving/pkg/apis/serving/v1alpha1"
)
// Get the revision template associated with a service.
// Depending on the structure returned either the new v1beta1 fields or the
// 'old' v1alpha1 fields are looked up.
// The returned revision template can be updated in place.
// An error is returned if no revision template could be extracted
func GetRevisionTemplate(service *servingv1alpha1.Service) (*servingv1alpha1.RevisionTemplateSpec, error) {
// Try v1beta1 field first
if service.Spec.Template != nil {
return service.Spec.Template, nil
}
config, err := getConfiguration(service)
if err != nil {
return nil, err
}
return config.DeprecatedRevisionTemplate, nil
}
func getConfiguration(service *servingv1alpha1.Service) (*servingv1alpha1.ConfigurationSpec, error) {
if service.Spec.DeprecatedRunLatest != nil {
return &service.Spec.DeprecatedRunLatest.Configuration, nil
} else if service.Spec.DeprecatedRelease != nil {
return &service.Spec.DeprecatedRelease.Configuration, nil
} else if service.Spec.DeprecatedPinned != nil {
return &service.Spec.DeprecatedPinned.Configuration, nil
} else {
return nil, errors.New("service does not specify a Configuration")
}
}